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Finding the Fourth Proportional to 15,758.80, 23,638.20 and 14,373.70

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Solution

The fourth proportional to 15,758.80, 23,638.20 and 14,373.70 is: 21,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.80 : 23,638.20 = 14,373.70 : x
  2. Step 2: Convert to fraction form
    15,758.80/23,638.20 = 14,373.70/x
  3. Step 3: Cross multiply
    15,758.80x = 23,638.20 × 14,373.70
  4. Step 4: Simplify right side
    15,758.80x = 339,768,395.34
  5. Step 5: Solve for x
    x = 339,768,395.34/15,758.80
  6. Step 6: Final answer
    x = 21,560.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.